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Main Lessons rational foundations of policy distortions how policy distortions are a result of “incomplete markets” why labor supply is so important tax equivalencies wealth vs. substitution effect of a tax rigorous definition of deadweight cost the “taxable income elasticity” measuring marginal tax rates public policy needs market analysis applications of the results to other economics fields

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Rational Foundations Olson’s Logic of Collective Action –people do not voluntarily and unilaterally pay taxes (in the amount they are forced to pay) or otherwise contribute to collective goods, even if they appreciate the way tax revenues are used, because they rely on others to make the contribution –restaurant example –is this logic correct? in large groups? how else can tax distortions be explained? tax payments vs. user fees –eg., Feldstein-Samwick on SS “contributions” –mandatory employee benefits voluntary contributions –what is their motivation? how fast are they “crowded out?” –might business taxes be more distortionary? “excessive” tax compliance, “insufficient” take-up

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Image credit: http://www.eonimages.com/media/5c62b78c-3e50-11e0-b603-41195133e60e-harvesting-meeting-on-ukrainian-collective-farmhttp://www.eonimages.com/media/5c62b78c-3e50-11e0-b603-41195133e60e-harvesting-meeting-on-ukrainian-collective-farm No U.S. copyright applies. “…the land was no longer theirs. They could work that land, but there was no guarantee that they could harvest the crop.” Dolot, Miron (2011) Soviet Collective Farms

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Image credit: http://www.eonimages.com/media/5c62b78c-3e50-11e0-b603-41195133e60e-harvesting-meeting-on-ukrainian-collective-farmhttp://www.eonimages.com/media/5c62b78c-3e50-11e0-b603-41195133e60e-harvesting-meeting-on-ukrainian-collective-farm No U.S. copyright applies. “the Soviet economy is proof that, contrary to what many skeptics had earlier believed, a socialist command economy can function and even thrive.” Paul Samuelson and William Nordhaus (1989!) Soviet Collective Farms

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Image credit: http://www.eonimages.com/media/5c62b78c-3e50-11e0-b603-41195133e60e-harvesting-meeting-on-ukrainian-collective-farmhttp://www.eonimages.com/media/5c62b78c-3e50-11e0-b603-41195133e60e-harvesting-meeting-on-ukrainian-collective-farm No U.S. copyright applies. “[surprised:] Private allotments of land on the collective farm often have much higher, not lower productivity than the collectivized sectors.” Paul Samuelson (1976) Soviet Collective Farms

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Image credit: http://www.eonimages.com/media/5c62b78c-3e50-11e0-b603-41195133e60e-harvesting-meeting-on-ukrainian-collective-farmhttp://www.eonimages.com/media/5c62b78c-3e50-11e0-b603-41195133e60e-harvesting-meeting-on-ukrainian-collective-farm No U.S. copyright applies. “That is why buildings in the Soviet Union – like public housing in the United States – look decrepit within a year or two of their construction.” Milton and Rose Friedman (1980) Soviet Collectivization

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Deadweight Loss also known as deadweight cost, excess burden 5 definitions –effect of policy on indirect utility (measured in “utils”) –area under the Marshallian demand curve (measured in $) –area under the Hicksian demand curve –additional income required to achieve old (pre-policy) utility at new prices –income change required to achieve new utility at old (pre- policy) prices equivalence results the “taxable income elasticity”

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Nontaxed Activity as a Composite Good tax avoidance can occur on many margins –hours per week –weeks per year –work or not work –cheat or not cheat –occupational choice –compensation composition –…–… taxable income elasticity as a summary statistictaxable income elasticity

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Measuring “the Marginal Tax Rate” MTR = statutory tax rate? –on a particular margin – substitution between tax base and untaxed activities –“tax base” may be of limited interest economically. eg., model may be about “capital,” but only some capital income is taxable model about “cigarettes,” but there are legal and illegal cigarette sales MTR = average tax rate? –“progressivity” –marginal vs. average substitution